ACTIVE AND PASSIVE ADAPTER FOR A MICROSD CARD
An adapter for a removable data storage device includes a substrate having a signal plane and ground plane. The signal plane includes a socket for receiving a removable data storage device, such as a microSD card. Traces are embedded in the signal plane of the substrate and electrically couple contact pins within the socket to corresponding contacts on the ground plane of the substrate. The traces are arranged as differential pairs which minimizes electromagnetic interference while enabling high data transfer rates and improved signal integrity.
1 . An adapter for a removable data storage device, comprising:
a socket coupled to a signal plane of a substrate, the socket receiving a removable data storage device;
a plurality of traces extending from the socket and at least partially across the signal plane of the substrate;
a plurality of contacts opposite the socket, each contact of the plurality of contacts being coupled to a respective trace of the plurality of traces; and
a ground plane opposite the signal plane.
2 . The adapter of claim 1 , wherein the plurality of traces are arranged as differential signal pairs.
3 . The adapter of claim 1 , wherein each trace of the plurality of traces extending from the socket are coupled to respective contact pins associated with the socket.
4 . The adapter of claim 3 , wherein the respective contact pins are arranged to contact multiple rows of contacts on the removable data storage device.
5 . The adapter of claim 1 , further comprising a retimer coupled to the signal plane, the retimer positioned between the socket and the plurality of contacts.
6 . The adapter of claim 1 , wherein the adapter is receivable in a host device.
7 . The adapter of claim 1 , further comprising a housing at least partially surrounding the substrate.
8 . The adapter of claim 1 , wherein the removable data storage device is a micro secure digital (SD) express card.
9 . An adapter for a removable data storage device, comprising:
a substrate comprising:
a signal plane; and
a ground plane opposite the signal plane;
a socket coupled to the signal plane and having a plurality of contact pins; and
a plurality of traces embedded in the substrate and extending from the plurality of contact pins and connecting the plurality of contact pins to a plurality of contacts.
10 . The adapter of claim 9 , further comprising a retimer coupled to the signal plane between the socket and the plurality of contacts.
11 . The adapter of claim 9 , wherein the socket receives a micro secure digital (SD) express card.
12 . The adapter of claim 9 , wherein the plurality of traces are arranged as differential signal pairs.
13 . The adapter of claim 9 , wherein the plurality of contact pins are arranged to contact multiple rows of contacts on the removable data storage device.
14 . The adapter of claim 9 , wherein the adapter is receivable in a host device.
15 . The adapter of claim 1 , further comprising a housing at least partially surrounding the substrate.
16 . An adapter for a removable data storage device, comprising:
a substrate comprising:
a signal plane; and
a ground plane opposite the signal plane;
a receiving means coupled to the signal plane and having a plurality of first contact means; and
a plurality of signal means embedded in the substrate and extending from the plurality of first contact means and connecting the plurality of first contact means to a plurality of second contact means.
17 . The adapter of claim 16 , wherein the first plurality of contact means have a first set of dimensions and the second plurality of contact means have a second dimension.
18 . The adapter of claim 16 , further comprising a signal quality means coupled to the signal plane.
19 . The adapter of claim 18 , wherein the signal quality means is a retimer.
20 . The adapter of claim 16 , wherein the plurality of signal means are arranged as differential signal pairs.